Furnace.



VT. 6. SELLECK.

'FURNACE. APPLICATION man mvm, ms. 1,172,398. Patented Feb. 22, 1916.

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T. G. SELLECK.

FURNACE.

APPLICATION FILED MAY 14, m5. 1,172,398. Patented Feb. '22, 1916 a SHEETS-SHEET 2.

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FURNACE. APPLICATION FILED MAY 14, 1915.

1 1 72,398. Patented Feb. 22, 1916.

3 SHEETS-SHEET 3- whereby the flames are distributed entirely rnnononne. srittncxior MfLwAUn EQ rscoasms T 0 whom it concern 7 Be it known that I, THEonoRn hflilwaukee, in theicounty of Milwaukee and State v of Wisconsin, have invented, certain new and useful Improvements in Furnaces,

of whichthe following is aspecification. i This, invention I relates I to, furnaces employed for converting, case-hardening; and

other processes requiring a high and substan tially uniform degree'of heat, and it is in'the, nature ofan improvement upon the furnaces] 1 shown in my "Patents, Nos. 729681 and:

770025, dated 1 June 2, 1903=andSeptember 13,1904, respectively. Y

The-objectof he present invention is provide a novel and nnprovedfurnace struc-"' ture ;;embodying an arrangement .1 of. flues around the chambers containing the'material to be treated, so that large heating surfaces 7 areobtained, resulting in a superior product.

In the accompanying drawing-Figure 1 is a side elevation of a furnace vconstructed in accordance with the present invention; Fig. 2is a front elevation of'the furnace; Fig.1 3

is a longitudinal section on the line 3+3 of- Fig. 2; Fig. l is'a cross-section on the line. Hof Fig. 3; Fig. 5 is a horizontal sec- 7 tion on the line 5-5 of Fig. 3; Fig. 6 is a cross-section on the line 66 of Fig. 3, and

Fig. 7 is a horizontal section of a fragment of the bottom flue of the furnace.

Referring specifically to the drawings, the

furnaceis built offire brick, having a front 'wall 10, side walls 11 and a rear wall 12.

a The structure is braced by a series of posts 13 of I section connected longitudinally by rods 14', and transversely by rods 15, the latter extending across the top of the furnace.

These rods are provided. with turnbuckles for tightening the same. The entirefurnace A isset in'a bed or foundation of concrete.

At the front end of the'furnace is a combustion chamber 17 which is fired by an oil burner, the nozzle 18 of which enters the combustion chamber through an opening in the wall 10. The combustion chamber has an arched roof 19, and from the floor, a short distance to the rear of the front wall 10,-rises a deflecting wall 20, the side of said wall which faces the burner being sloping and the nozzle 18 being arranged perpendicularly with respect to said sloping face to discharge the flame squarely thereon, whereby the r g e n G. smack, a-icitizen of the United States, residing'gat a pu tiofima May 4, seatin -28,15 g

broken up and deflectedupward rearward in ftheJform of afsheet),

V YBehind thefw'a1l 2O ,the furnace contains series of jtranfsverse walls or partitions 21 which arespaced and have openings 22. The 0pen1ngs22 I of adj acent walls are not-in alinement Qbut are staggered .so thata ftortuoujslfl ejisipr auc agr i flue has altop M1123 PmfidedWith arches f At the back of the furnace is a .ye ti l flue; 24' into whichv the tortuous flue hereintherearmost wall or partition 21.

g The; wall forms the floor. of a series of transverse chambers 25] in w hich the charges areplac'ed The ends oflthese chambers are open and provided with swinging closures 26 and 27, respectively." The chambershave before .descr'bedopens by the openings 22 in aflslight transverse incline to allowfjthe charge to be,pushed in "more easily from-the higher end, and pushed. out i of the lower endby means ofabar inserted .froin'the' higher end, {The front. and rear Walls of the. chambers areshown'ati25 and .25", .re-"

forms thebottom or floor. of-the chamspectively, and the top at 2 5, and the wall bers. 'iThe side walls 11 of the furnace form the end wallsof the-chambers. I i

p The chambers 25 are spaced, to obtainfines therebetween, and in said'flues are partitions 28having bottom openings 28*.

V The flue 2st extends upward behind the rearmost berisa partition 28. '7 In front of the partition 28 is an exit flue 30 leading to'a stack chamber, and in front ofthe forward cham- 30 and saidp'artition has bottom openings 28. Above each chamberand spaced there- A, i

from are arches 31, whereby top flues 31 are had. The partitions 28 extend betweenthe side walls 11. of the furnace and rise from the walls 23 to the arches 31, The flue 24=- communicates at its upper end with the flue 31 above the rearmost chamber 25, and

space behind the partition 28 which is lo cated betweenthe rearmost chamberandthe said .flue 31? communicates with the flue next chamber ahead. The space on the Y other side of the last-mentioned partition communicates with the flue 31 above the last-mentioned, chamber, and said last-men tioned flue 31 communicates with the space between the last-mentioned chamber and the partition 28 in front thereof. The space on the other side of'the last-mentioned part1- tion communicates with the flue 31 above the forward chamber 25, and said 1ast-men--1 tioned flue 31 communicates with. the space between the last-mentioned chamber-r and the partitions 128" having the openings-28 into the exit flue 301eading to the stack-30?.- It will be evident from the foregoingthat the heat and flames pass. rearward beneath.

, the chambers 25, then rise in the flue 2e and pass across the top of the'chambers and also up and downthe front, and rear Walls there., of, and finally: escape to the exit flue -30."

The charge chambers therefore have a large heating surface theybeing entirely-surrounded with a mass of live flame, resulting;

chamber, an upwardextending flue at the rearend of the furnace," a'longitudinal bottomflue beneath the treating chambers lead: ing' from the" combustion; chamber to the aforesaid rear: flue, said bottom flue being 7 V composed of spaceditransver-se partitlons having oopenlngs and the openings of=consecutivepartitions being staggered; a top flue above each treating chamber; the top fine f of the rear treating chamber leading from the top of the-areal?flue,.perforated;

Gmgies of thisipatent may be obtained for partitions in the spacesbetween-the treating chambers, the'spaces-on opposite sides-of the partitions, communicating respectively with the top fines of adjacent treating charm.

bers; a perforated partition infront of and spaced from the'front treating chamber; the space between said last-mentioned partition and treating chamber being in communicathe last-mentioned,partition open.-

tion with the top flue ofsaid chamber, and. anexit flue into Which'the perforations of 2. A- furnace comprising. a combustion? chamber, a series of sp'acedtransverse treat:

ing chambers toJthe r'ea'rlof the =comb1'1stion'ichamber; an "upwardexten ding flue at the rear end of the furnace,a longitudinal'ibot tom flue beneath thet'reatingchambers leading from: the" combustion chamber to the composed of spaced t'r'an sver'se partitions having openings, and "the openings-10f corn-q secutive partitions being staggered; an exit fiueat the front end of thefurnaceand flues above the treating chambers in communicae.

tion with. the spaces between said'chambers' and communicating atone end with therear fine and at'the-other. end with the exitflue.) Intestimony whereof I aflix my signature:

in presence of two witnesses; V I

THEODORE GJSELLEOK; Witnesses: ALBERT EL Homers,

Game

five cents -each; by addressing (the 1C o'mmissi oner ;of Tatentsg "WashingtomD. G. 

